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Round|Natural|GIA

1.03ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1559549275

Certificate GIA 1559549275

Diamond specifications and retailer prices

From $2,369 CAD
As of November 4, 2026
Save $3,890 CAD (62%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,258 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559549275. Listed at 6 retailers as of November 4, 2026, with prices from $2,369 to $6,258, a $3,890 spread on the same certified stone. NZ Jewellers lists it at $6,258. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.03
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1559549275
Dimensions6.43 × 6.46 × 4.01 mm
L/W Ratio1.00
Star length50%
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather
Top View
6.43 mm6.46 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559549275
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $6,258 CAD|Low: $1,972 CAD|High: $6,258 CAD|Avg: $3,643 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$2,369 CAD
Retailer 6$2,591 CAD
Retailer 3$2,971 CAD
Retailer 2$3,289 CAD
Retailer 4$4,483 CAD
NZ Jewellers$6,258 CAD

26 data points across 6 retailers

6 retailers$2,369 CAD to $6,258 CAD

A
Cheapest Retailer
-
$2,369 CAD
Final sale: no returns
B+
Retailer 2
-
$2,591 CAD
View
B+
Retailer 3
-
$2,971 CAD
View
B+
Retailer 4
-
$3,289 CAD
View
B
Retailer 5
-
$4,483 CAD
View
Most Expensive
B
NZ Jewellers
4227146a-3a3a-46c1-b34d-3e252ed990b2 · Nov 5
$6,258 CAD
$4,481 USD
View
5 more retailers have this diamond
Prices start from $2,369 CADSave up to $3,890 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.03ct Round
$2,369 CAD